#include <iostream>
#include <queue>
#include <vector>

using namespace std;

int cmmdc(int a, int b){
    while(b!=0){
        int r = a%b;
        a=b;
        b=r;
    }
    return a;
}

int main(){

    int a, b;
    cin>>a>>b;

    int m = a*b/cmmdc(a, b);

    queue <int> q;
    q.push(1);

    int k;
    
    while(!q.empty()){
        k = q.front();
        q.pop();

        if(k%m==0){
            break;
        }

        q.push(k*10);
        q.push(k*10+1);
    }

    cout << k;

    return 0;
}